Editable Availability for Tasks & Time Slots

It would be really valuable to have the ability to manually set and edit the availability status of both tasks and time slots (e.g. marking them as free or busy). For now, you can only edit the visibility. I want these tasks and time slot to show up in my calendar but also free those time for possible calls coming in. This would give users more flexibility and control over scheduling behavior, especially when managing complex calendars or coordinating across multiple systems.